ELKPURE won the bid for 81 sets of Ge E-Cell 3x EDI repair in a thermal power plant to repair the 450m3 / h EDI ultra pure water system of a large thermal power plant. Due to the cracking of EDI fresh water plate and frame, water leakage and leakage, it seriously affected the production. Shenzhen ELKPURE won the bid with the advantages of technology and service. The EDI warranty after maintenance by the company is 2 years and the service life is more than 3 years, saving about 3 million yuan for customers to purchase new EDI.

The 250m3 / h EDI ultrapure water system of a large photovoltaic enterprise adopts 50 sets of Suez E-Cell 3x EDI. The resin is oxidized and broken due to excessive residual chlorine. Shenzhen ELKPURE company completes the maintenance of EDI within 15 days and recovers the direct loss of 1.8 million yuan for customers.

Relying on its technical, price and efficiency advantages, Shenzhen ELKPURE won the bid in one fell swoop, completed all EDI repair work within 15 days, conducted 72 hour performance assessment, fully met the bidding requirements and successfully passed the acceptance.

Shenzhen ELKPURE Environmental Protection Technology Co., Ltd. passed the review of qualified suppliers of China Resources Group and officially became a qualified supplier of China Resources Group.

在很多中大型RO纯水系统中，二级RO的进水都设计了加碱装置，这是为什么呢？由于一级RO进水含有CO2，所以RO产水pH 值一般都比进水低，当进水碱度及HCO3-含量高时，其pH下降更大。当pH小于8时，水中HCO3-、CO32-开始转为CO2，当pH小于4时，水中HCO3-、CO32-全部转为CO2。因此，在二级RO进水中，通过投加NaOH 可以CO2 使转为可以被RO膜脱除掉的HCO3-、CO32-，从而提高二级RO的脱盐率。

亚硫酸氢钠作为还原剂，去除水中余氯的原理是什么？